About how to repair PDFs
PDF na collection of numbered objects, with one index for the end of the file, wey dem dey call cross-reference table, wey dey show where each object start. When download stop for middle, when dem copy or email file badly, or when one program save am with mistakes, that index or the length of data stream fit be wrong, and readers go then refuse the file, show blank pages or warn say e don damage. This tool dey open the file with the recovery wey dey inside qpdf, wey dey find every object by scanning the file itself, correct stream lengths and replace objects wey no fit read. Then we go check every page and write the whole document again with fresh, correct index, compressed and linearised for fast web view, so e go open quick for browsers. Nothing change for how the pages look. Repair fit only bring back wetin still dey inside the file: if part of am no dey, for example because download stop for halfway, the pages wey lost no fit create again, and file wey no be real PDF no fit repair at all. For that kind case, download am again or ask for the file again. File wey need password must unlock first with Unlock PDF.
Limits: files reach 25 MB on Free, 200 MB on Pro and 500 MB on Business; reach 3 files for each task on Free, 50 on Pro and 200 on Business, with reach 2,000 pages each. Free get 10 server tasks every day.
Before you sign in, files fit reach 25 MB and you fit run 10 server tasks every day. Free account go raise am to 25 MB and 10 tasks every day.
Privacy: your file dey upload through encrypted connection go our UK servers, e dey process by itself without any person opening am, and we go delete am inside 2 hours (1 hour on Free), or sharp sharp with Delete now.
How to use the PDF tools: Step-by-step help with every tool, limits and your files.
Repair PDF: questions wey people dey ask
Which problems this one fit fix?
Cross-reference table wey don break or no dey, wrong stream lengths, objects wey don spoil and other structure mistakes, wey dey cause most "file is damaged" errors.
Why e dey talk say the file no fit repair?
The original PDF wey remain for the file too small, or e no be PDF at all. Download am again or ask for the file again; repair no fit create pages wey no dey again.
My PDF dey okay. E still make sense to run am?
Yes. Healthy file go rewrite with clean structure and linearise for fast web view; the result page go talk say we no find any damage.
The repair go change my pages?
No. Pages, text, pictures and links go stay the same. Na only the inside structure of the file we dey rebuild.
E fit repair PDFs wey get password?
If the PDF need password before e open, unlock am first with Unlock PDF. Files wey only block printing or copying go repair and dem go keep their restrictions.